RU2017101355A - FORMING MIXTURE AND RELATED METHODS FOR CASTING AND CLEANING OF METAL PRODUCTS - Google Patents

FORMING MIXTURE AND RELATED METHODS FOR CASTING AND CLEANING OF METAL PRODUCTS Download PDF

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Publication number
RU2017101355A
RU2017101355A RU2017101355A RU2017101355A RU2017101355A RU 2017101355 A RU2017101355 A RU 2017101355A RU 2017101355 A RU2017101355 A RU 2017101355A RU 2017101355 A RU2017101355 A RU 2017101355A RU 2017101355 A RU2017101355 A RU 2017101355A
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RU
Russia
Prior art keywords
binder
calcium oxide
mold
percent
residual
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RU2017101355A
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Russian (ru)
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RU2017101355A3 (en
Inventor
Мл. Джон Э. ХОФФМАН
Ст. Ричард А. ХОФФМАН
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БЕРКС РИСЕРЧ, ЭлЭлСи
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Publication of RU2017101355A3 publication Critical patent/RU2017101355A3/ru
Publication of RU2017101355A publication Critical patent/RU2017101355A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/02Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C1/00Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001Removing cores
    • B22D29/002Removing cores by leaching, washing or dissolving
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04Handling or stripping castings or ingots
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25FPROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00Electrolytic cleaning, degreasing, pickling or descaling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Mold Materials And Core Materials (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)

Claims (19)

1. Способ отделения остаточного материала формы от литого металлического изделия, причем материал формы образует жесткую литейную форму, в которую было отлито металлическое изделие, включающий:1. A method of separating the residual mold material from a cast metal product, wherein the mold material forms a rigid mold in which a metal product has been cast, including: смачивание наружной поверхности тела, содержащего литое металлическое изделие и остаточный материал формы, основным электролитом; иwetting the outer surface of the body containing the molten metal product and the residual mold material with a basic electrolyte; and пропускание электрического тока через электролит и упомянутое тело,passing an electric current through an electrolyte and said body, причем материал формы содержит зернистый огнеупорный материал, связующее и очищающее вещество, причем очищающее вещество содержит оксид кальция, связующее связывает огнеупорный материал в жесткой матрице связующего, оксид кальция также распределяется во всем объеме жесткой матрицы связующего и присутствует в остаточном материале формы в достаточном количестве, чтобы проявлять активность в качестве очищающего вещества при пропускании электрического тока через электролит и упомянутое тело.moreover, the mold material contains granular refractory material, a binder and a cleaning agent, wherein the cleaning substance contains calcium oxide, the binder binds the refractory material in a rigid matrix of the binder, calcium oxide is also distributed throughout the volume of the rigid matrix of the binder and is present in the residual material of the form in sufficient exhibit activity as a cleaning agent when passing an electric current through an electrolyte and said body. 2. Способ по п.1, включающий стадию:2. The method according to claim 1, comprising the stage of: смешивания карбоната калия или бикарбоната натрия с водой для получения электролита.mixing potassium carbonate or sodium bicarbonate with water to produce an electrolyte. 3. Способ по п.1, в котором связующее выбирают из группы, которую составляют: полимерное связующее, неполимерное связующее, отверждаемое в жидком состоянии связующее и отверждаемое при нагревании связующее.3. The method according to claim 1, in which the binder is selected from the group consisting of: a polymeric binder, a non-polymeric binder, a liquid curable binder and a binder that is cured by heating. 4. Способ по п.3, в котором связующее представляет собой отверждаемое при нагревании полимерное связующее или каталитически отверждаемое полимерное связующее.4. The method according to claim 3, in which the binder is a heat-curable polymer binder or a catalytically curable polymer binder. 5. Способ по п.3, в котором связующее представляет собой отверждаемое в жидком состоянии связующее, содержащее водный связующий материал.5. The method according to claim 3, in which the binder is a liquid-curable binder containing an aqueous binder material. 6. Способ по п.1, в котором огнеупорный материал и связующее вместе образуют первую часть остаточного материала формы, а оксид кальция составляет от приблизительно 1/2% (полпроцента) до приблизительно 5% (пять процентов) по массе или объему первой части остаточного материал формы.6. The method according to claim 1, in which the refractory material and the binder together form the first part of the residual material of the form, and calcium oxide is from about 1/2% (half percent) to about 5% (five percent) by weight or volume of the first part of the residual mold material. 7. Способ по п.1, в котором остаточный материал формы, образующий литейную форму, в которую отлито металлическое изделие, имеет прочность при растяжении в холодном состоянии, составляющую не менее чем 420 фунтов на квадратный дюйм, и/или имеет потерю массы при прокаливании, составляющую не более чем два и девяносто сотых процента (2,90%).7. The method according to claim 1, wherein the residual mold material forming the mold into which the metal product is cast has a cold tensile strength of not less than 420 psi and / or has a weight loss on ignition constituting no more than two and ninety-hundredths of a percent (2.90%). 8. Способ по п.1, в котором часть материала формы, исключая оксид кальция, составляет первую часть материал формы, и первая часть материала формы содержит не более чем 7% (семь процентов) воды.8. The method according to claim 1, in which a portion of the mold material, excluding calcium oxide, constitutes a first portion of the mold material, and the first portion of the mold material contains no more than 7% (seven percent) of water. 9. Формовочная смесь для изготовления литейной формы для литья металлического изделия, причем данная формовочная смесь представляет собой физическую смесь зернистого гранулированного огнеупорного материала, связующего, и очищающего вещества, причем очищающее вещество содержит оксид кальция, связующее является пригодным для обработки и образования жесткой матрицы связующего, связывающей огнеупорный материал, оксид кальция присутствует в формовочной смеси в достаточном количестве, чтобы после образования жесткой матрицы связующего достаточное количество оксида кальция, оставшегося в матрице, проявляло активность в качестве очищающего вещества в течение электролитической очистки литого металлического изделия от формовочной смеси.9. The molding mixture for the manufacture of a mold for casting a metal product, and this molding mixture is a physical mixture of granular granular refractory material, a binder, and a cleaning agent, the cleaning agent containing calcium oxide, the binder is suitable for processing and forming a rigid matrix of a binder, binding the refractory material, calcium oxide is present in the moldable mixture in sufficient quantity so that after the formation of a rigid matrix of the binder residual quantity of calcium oxide remaining in the matrix, showed activity as a cleaning agent for the cast metal product from the electrolytic cleaning moldable mixture. 10. Формовочная смесь по п.9, в которой связующее выбрано из группы, включающей полимерное связующее, неполимерное связующее, отверждаемое в жидком состоянии связующее и отверждаемое при нагревании связующее. 10. The moldable mixture according to claim 9, in which the binder is selected from the group comprising a polymeric binder, a non-polymeric binder, a liquid curable binder, and a binder that is cured by heating. 11. Формовочная смесь по п.10, в которой связующее представляет собой водный связующий материал.11. The molding mixture of claim 10, in which the binder is an aqueous binder material. 12. Формовочная смесь по п.9, в которой огнеупорный материал и связующее вместе образуют первую часть формовочной смеси, а оксид кальция составляет от приблизительно 1/2% (полпроцента) до приблизительно 5% (пять процентов) массы или объема первой части формовочной смеси.12. The moldable mixture according to claim 9, in which the refractory material and the binder together form the first part of the molding mixture, and calcium oxide is from about 1/2% (half percent) to about 5% (five percent) of the mass or volume of the first part of the molding mixture . 13. Формовочная смесь по п.9, дополнительно содержащая, по меньшей мере, один из материалов (A) и (B): (A) добавка, причем данная добавка не представляет собой воду, и (B) суспендирующее вещество.13. The molding mixture according to claim 9, further comprising at least one of materials (A) and (B): (A) an additive, wherein the additive is not water, and (B) a suspending agent. 14. Формовочная смесь по п.9, в которой огнеупорный материал состоит из песка, связующее представляет собой полимерное связующее, и полимерное связующее имеет способность к отверждению без использования воды, образуя жесткую матрицу связующего, причем полимерное связующее относится к такому типу, который не реагирует с оксидом кальция в процессе отверждения.14. The molding mixture according to claim 9, in which the refractory material consists of sand, the binder is a polymeric binder, and the polymeric binder has the ability to cure without the use of water, forming a rigid matrix of the binder, and the polymer binder is of the type that does not react with calcium oxide during the curing process. 15. Формовочная смесь по п.1, причем формовочная смесь является пригодной для изготовления литейной формы, которая имеет прочность при растяжении в холодном состоянии, составляющую не менее чем 420 фунтов на квадратный дюйм, и/или имеет потерю массы при прокаливании, составляющую не более чем два и девяносто сотых процента (2,90%).15. The molding mixture according to claim 1, wherein the molding mixture is suitable for the manufacture of a mold that has a tensile strength in the cold state of at least 420 psi and / or has a weight loss upon calcination of not more than than two and ninety hundredths of a percent (2.90%).
RU2017101355A 2014-06-18 2014-10-10 FORMING MIXTURE AND RELATED METHODS FOR CASTING AND CLEANING OF METAL PRODUCTS RU2017101355A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201462013832P 2014-06-18 2014-06-18
US62/013,832 2014-06-18
US201462043925P 2014-08-29 2014-08-29
US62/043,925 2014-08-29
PCT/US2014/060015 WO2015195157A1 (en) 2014-06-18 2014-10-10 Foundry mixture for casting and cleaning metal parts

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RU2017101355A3 RU2017101355A3 (en) 2018-07-18
RU2017101355A true RU2017101355A (en) 2018-07-18

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US (1) US9038708B1 (en)
EP (1) EP3157693A4 (en)
JP (1) JP2017518886A (en)
CN (1) CN107073558A (en)
AU (1) AU2014397782A1 (en)
BR (1) BR112016029915A2 (en)
MX (1) MX2016016822A (en)
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WO2015195157A1 (en) 2015-12-23
AU2014397782A1 (en) 2017-01-12
RU2017101355A3 (en) 2018-07-18
JP2017518886A (en) 2017-07-13
US9038708B1 (en) 2015-05-26
MX2016016822A (en) 2017-04-25
BR112016029915A2 (en) 2017-08-22
EP3157693A4 (en) 2018-01-17
CN107073558A (en) 2017-08-18
EP3157693A1 (en) 2017-04-26

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